2 * PS3 time and rtc routines.
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006 Sony Corp.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/kernel.h>
24 #include <asm/lv1call.h>
29 #define dump_tm(_a) _dump_tm(_a, __func__, __LINE__)
30 static void _dump_tm(const struct rtc_time *tm, const char* func, int line)
32 pr_debug("%s:%d tm_sec %d\n", func, line, tm->tm_sec);
33 pr_debug("%s:%d tm_min %d\n", func, line, tm->tm_min);
34 pr_debug("%s:%d tm_hour %d\n", func, line, tm->tm_hour);
35 pr_debug("%s:%d tm_mday %d\n", func, line, tm->tm_mday);
36 pr_debug("%s:%d tm_mon %d\n", func, line, tm->tm_mon);
37 pr_debug("%s:%d tm_year %d\n", func, line, tm->tm_year);
38 pr_debug("%s:%d tm_wday %d\n", func, line, tm->tm_wday);
41 #define dump_time(_a) _dump_time(_a, __func__, __LINE__)
42 static void __attribute__ ((unused)) _dump_time(int time, const char* func,
49 pr_debug("%s:%d time %d\n", func, line, time);
50 _dump_tm(&tm, func, line);
54 * rtc_shift - Difference in seconds between 1970 and the ps3 rtc value.
59 void __init ps3_calibrate_decr(void)
64 result = ps3_repository_read_be_tb_freq(0, &tmp);
68 ppc_proc_freq = ppc_tb_freq * 40;
70 rtc_shift = ps3_os_area_rtc_diff();
73 static u64 read_rtc(void)
79 result = lv1_get_rtc(&rtc_val, &tb_val);
85 int ps3_set_rtc_time(struct rtc_time *tm)
87 u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
88 tm->tm_hour, tm->tm_min, tm->tm_sec);
90 rtc_shift = now - read_rtc();
94 void ps3_get_rtc_time(struct rtc_time *tm)
96 to_tm(read_rtc() + rtc_shift, tm);
101 unsigned long __init ps3_get_boot_time(void)
103 return read_rtc() + rtc_shift;